{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ28CA-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SMBJ28CA-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/SMBJ28CA-TR","factsUrl":"https://icboms.com/api/mcp/products/SMBJ28CA-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SMBJ, TRANSIL™ series, Zener, Bidirectional, 1 channel, 28V reverse standoff, 45.4V clamping, 600W peak pulse power, DO-214AA SMB surface mount, -55°C to 150°C.","salesMarkdown":"## 28V rail protection — the selection anchor The reverse standoff voltage of 28V is the maximum continuous DC voltage the device will pass without conducting appreciable leakage — match this to your supply rail or signal line's normal operating voltage. When a surge hits, the clamping voltage is held to 45.4V at the peak pulse current of 13.8A (tested with the standard 10/1000µs waveform). This is a single-channel bidirectional device, meaning it clamps overvoltage in both positive and negative directions symmetrically. No need to series two unidirectional parts back-to-back — one SMBJ28CA-TR handles it. The breakdown voltage (minimum 31.1V) is the same in both directions, so the protection threshold is identical regardless of polarity. The DO-214AA (SMB) package is a common surface-mount footprint for TVS diodes in this power class — standard reflow profiles apply, and the package is compatible with automated pick-and-place.","metaTitle":"STMicroelectronics SMBJ28CA-TR Bidirectional TVS Diode, 28V","metaDescription":"STMicroelectronics SMBJ28CA-TR bidirectional Zener TVS diode. 28V reverse standoff, 45.4V clamping, 600W peak pulse power. DO-214AA SMB package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"SMBJ, TRANSIL™","Package":"Tape & Reel (TR) Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"SMBJ28","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMB (DO-214AA)","Voltage - Breakdown (Min)":"31.1V","Voltage - Clamping (Max) @ Ipp":"45.4V","Voltage - Reverse Standoff (Typ)":"28V","Current - Peak Pulse (10/1000µs)":"13.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/28916e022258112f057e7568b7920d5a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMBJ28CA-TR/alternatives.json"},"ai":{"faq":[{"question":"Is SMBJ28CA-TR bidirectional or unidirectional?","answer":"It is a bidirectional device — one channel that clamps both positive and negative transients symmetrically. The breakdown voltage is the same in both directions."},{"question":"What package does SMBJ28CA-TR come in?","answer":"It is supplied in a DO-214AA (SMB) surface-mount package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SMBJ28CA-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SMBJ28CA-TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}